Power adapters for Mac notebooks are available in 29W, 30W, 45W, 60W, 61W, 85W, and 87W varieties. You should use the appropriate wattage power adapter for your Mac notebook. You can use a compatible higher wattage adapter without issue, but it won't make your computer charge faster or operate differently. Lower wattage adapters don't provide enough power.

MagSafe power adapters have three pieces: Connector and adapter, AC cable, and the AC plug, or "duckhead."

MacBook (2015 and later) comes with an 29W or 30W USB-C Power Adapter with duckhead and a USB-C Charge Cable. MacBook Pro (2016 and later) comes with an 61W or 87W USB-C Power Adapter with duckhead and a USB-C Charge Cable.

29W or 30W USB-C Power Adapter and USB-C Charge Cable MacBook (2015 and later)

Apple 61W USB-C Power Adapter and USB-C Charge Cable MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports) MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports) MacBook Pro (13-inch, 2017, Two Thunderbolt 3 Ports) MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports) MacBook Pro (13-inch, 2016, Two Thunderbolt 3 Ports)

Apple 87W USB-C Power Adapter and USB-C Charge Cable MacBook Pro (15-inch, 2018) MacBook Pro (15-inch, 2017) MacBook Pro (15-inch, 2016)

85W MagSafe power adapter with MagSafe 2 style connector MacBook Pro (Retina, 15 inch, Mid 2015) MacBook Pro (Retina, 15-inch, Mid 2014) MacBook Pro (Retina, 15-inch, Late 2013) Macbook Pro (Retina, 15-inch, Early 2013) MacBook Pro (Retina, Mid 2012)

60W MagSafe power adapter with MagSafe 2 style connector MacBook Pro (Retina, 13-inch, Early 2015) MacBook Pro (Retina, 13-inch, Mid 2014) MacBook Pro (Retina, 13-inch, Late 2013) MacBook Pro (Retina, 13-inch, Early 2013) MacBook Pro (Retina, 13-inch, Late 2012)

45W MagSafe power adapter with MagSafe 2 style connector MacBook Air (13-inch, 2017) MacBook Air (11-inch, Early 2015)